US Patent 11919335 Pneumatic tire

A pneumatic tire of the present disclosure includes, on a tread surface, a plurality of circumferential main grooves extending in the tire circumferential direction, and a plurality of land portions defined between circumferential main grooves adjacent in the tire width direction among the plurality of circumferential main grooves or by the circumferential main grooves and tread edges. The land portions include at least one circumferential sipe extending in the tire circumferential direction. The circumferential sipe includes a plurality of widened portions arranged in the tire circumferential direction. In a reference state, each widened portion is formed only from a portion that, from one side towards the other side in the tire circumferential direction, extends from the tread surface inward in the tire radial direction.